tools: build dump_ld_config and filesize with -D_FILE_OFFSET_BITS=64

... because they use stat().

tools/dump_ld_config.c

@@ -25,6 +25,9 @@
 #ifndef _GNU_SOURCE
 # define _GNU_SOURCE
 #endif
+#ifndef _FILE_OFFSET_BITS
+# define _FILE_OFFSET_BITS 64
+#endif
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>

tools/filesize.c

@@ -16,6 +16,12 @@
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
+#ifndef _GNU_SOURCE
+ # define _GNU_SOURCE
+#endif
+#ifndef _FILE_OFFSET_BITS
+# define _FILE_OFFSET_BITS 64
+#endif
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>